17c58bb76SPaolo Bonzini /*
27c58bb76SPaolo Bonzini * QEMU storage daemon
37c58bb76SPaolo Bonzini *
47c58bb76SPaolo Bonzini * Copyright (c) 2003-2008 Fabrice Bellard
57c58bb76SPaolo Bonzini * Copyright (c) 2019 Kevin Wolf <kwolf@redhat.com>
67c58bb76SPaolo Bonzini *
77c58bb76SPaolo Bonzini * Permission is hereby granted, free of charge, to any person obtaining a copy
87c58bb76SPaolo Bonzini * of this software and associated documentation files (the "Software"), to deal
97c58bb76SPaolo Bonzini * in the Software without restriction, including without limitation the rights
107c58bb76SPaolo Bonzini * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
117c58bb76SPaolo Bonzini * copies of the Software, and to permit persons to whom the Software is
127c58bb76SPaolo Bonzini * furnished to do so, subject to the following conditions:
137c58bb76SPaolo Bonzini *
147c58bb76SPaolo Bonzini * The above copyright notice and this permission notice shall be included in
157c58bb76SPaolo Bonzini * all copies or substantial portions of the Software.
167c58bb76SPaolo Bonzini *
177c58bb76SPaolo Bonzini * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
187c58bb76SPaolo Bonzini * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
197c58bb76SPaolo Bonzini * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
207c58bb76SPaolo Bonzini * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
217c58bb76SPaolo Bonzini * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
227c58bb76SPaolo Bonzini * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
237c58bb76SPaolo Bonzini * THE SOFTWARE.
247c58bb76SPaolo Bonzini */
257c58bb76SPaolo Bonzini
267c58bb76SPaolo Bonzini #include "qemu/osdep.h"
277c58bb76SPaolo Bonzini
287c58bb76SPaolo Bonzini #include <getopt.h>
297c58bb76SPaolo Bonzini
307c58bb76SPaolo Bonzini #include "block/block.h"
317c58bb76SPaolo Bonzini #include "block/nbd.h"
327c58bb76SPaolo Bonzini #include "chardev/char.h"
337c58bb76SPaolo Bonzini #include "crypto/init.h"
347c58bb76SPaolo Bonzini #include "monitor/monitor.h"
357c58bb76SPaolo Bonzini #include "monitor/monitor-internal.h"
367c58bb76SPaolo Bonzini
377c58bb76SPaolo Bonzini #include "qapi/error.h"
387c58bb76SPaolo Bonzini #include "qapi/qapi-visit-block-core.h"
395daa6bfdSKevin Wolf #include "qapi/qapi-visit-block-export.h"
407c58bb76SPaolo Bonzini #include "qapi/qapi-visit-control.h"
417c58bb76SPaolo Bonzini #include "qapi/qmp/qdict.h"
427c58bb76SPaolo Bonzini #include "qapi/qmp/qstring.h"
437c58bb76SPaolo Bonzini #include "qapi/qobject-input-visitor.h"
447c58bb76SPaolo Bonzini
4549f95221SMarc-André Lureau #include "qemu/help-texts.h"
467c58bb76SPaolo Bonzini #include "qemu-version.h"
4706680b15SMarc-André Lureau #include "qemu/cutils.h"
487c58bb76SPaolo Bonzini #include "qemu/config-file.h"
497c58bb76SPaolo Bonzini #include "qemu/error-report.h"
507c58bb76SPaolo Bonzini #include "qemu/help_option.h"
51e2c1c34fSMarkus Armbruster #include "qemu/job.h"
527c58bb76SPaolo Bonzini #include "qemu/log.h"
537c58bb76SPaolo Bonzini #include "qemu/main-loop.h"
547c58bb76SPaolo Bonzini #include "qemu/module.h"
557c58bb76SPaolo Bonzini #include "qemu/option.h"
567c58bb76SPaolo Bonzini #include "qom/object_interfaces.h"
577c58bb76SPaolo Bonzini
587c58bb76SPaolo Bonzini #include "storage-daemon/qapi/qapi-commands.h"
597c58bb76SPaolo Bonzini #include "storage-daemon/qapi/qapi-init-commands.h"
607c58bb76SPaolo Bonzini
617c58bb76SPaolo Bonzini #include "sysemu/runstate.h"
627c58bb76SPaolo Bonzini #include "trace/control.h"
637c58bb76SPaolo Bonzini
6403d2b412SStefan Hajnoczi static const char *pid_file;
659d8f8233SHanna Reitz static char *pid_file_realpath;
667c58bb76SPaolo Bonzini static volatile bool exit_requested = false;
677c58bb76SPaolo Bonzini
qemu_system_killed(int signal,pid_t pid)687c58bb76SPaolo Bonzini void qemu_system_killed(int signal, pid_t pid)
697c58bb76SPaolo Bonzini {
707c58bb76SPaolo Bonzini exit_requested = true;
717c58bb76SPaolo Bonzini }
727c58bb76SPaolo Bonzini
qmp_quit(Error ** errp)737c58bb76SPaolo Bonzini void qmp_quit(Error **errp)
747c58bb76SPaolo Bonzini {
757c58bb76SPaolo Bonzini exit_requested = true;
767c58bb76SPaolo Bonzini }
777c58bb76SPaolo Bonzini
help(void)787c58bb76SPaolo Bonzini static void help(void)
797c58bb76SPaolo Bonzini {
807c58bb76SPaolo Bonzini printf(
817c58bb76SPaolo Bonzini "Usage: %s [options]\n"
827c58bb76SPaolo Bonzini "QEMU storage daemon\n"
837c58bb76SPaolo Bonzini "\n"
847c58bb76SPaolo Bonzini " -h, --help display this help and exit\n"
857c58bb76SPaolo Bonzini " -T, --trace [[enable=]<pattern>][,events=<file>][,file=<file>]\n"
867c58bb76SPaolo Bonzini " specify tracing options\n"
877c58bb76SPaolo Bonzini " -V, --version output version information and exit\n"
887c58bb76SPaolo Bonzini "\n"
897c58bb76SPaolo Bonzini " --blockdev [driver=]<driver>[,node-name=<N>][,discard=ignore|unmap]\n"
907c58bb76SPaolo Bonzini " [,cache.direct=on|off][,cache.no-flush=on|off]\n"
917c58bb76SPaolo Bonzini " [,read-only=on|off][,auto-read-only=on|off]\n"
927c58bb76SPaolo Bonzini " [,force-share=on|off][,detect-zeroes=on|off|unmap]\n"
937c58bb76SPaolo Bonzini " [,driver specific parameters...]\n"
947c58bb76SPaolo Bonzini " configure a block backend\n"
957c58bb76SPaolo Bonzini "\n"
967c58bb76SPaolo Bonzini " --chardev <options> configure a character device backend\n"
977c58bb76SPaolo Bonzini " (see the qemu(1) man page for possible options)\n"
987c58bb76SPaolo Bonzini "\n"
992525edd8SHanna Reitz " --daemonize daemonize the process, and have the parent exit\n"
1002525edd8SHanna Reitz " once startup is complete\n"
1012525edd8SHanna Reitz "\n"
10245db4bc1SKevin Wolf " --export [type=]nbd,id=<id>,node-name=<node-name>[,name=<export-name>]\n"
1037c58bb76SPaolo Bonzini " [,writable=on|off][,bitmap=<name>]\n"
1047c58bb76SPaolo Bonzini " export the specified block node over NBD\n"
1057c58bb76SPaolo Bonzini " (requires --nbd-server)\n"
1067c58bb76SPaolo Bonzini "\n"
107d1bbd965SPhilippe Mathieu-Daudé #ifdef CONFIG_FUSE
108220222a0SMax Reitz " --export [type=]fuse,id=<id>,node-name=<node-name>,mountpoint=<file>\n"
109cb90ec3aSHanna Reitz " [,growable=on|off][,writable=on|off][,allow-other=on|off|auto]\n"
110220222a0SMax Reitz " export the specified block node over FUSE\n"
111220222a0SMax Reitz "\n"
112d1bbd965SPhilippe Mathieu-Daudé #endif /* CONFIG_FUSE */
113c8cbc952SPhilippe Mathieu-Daudé #ifdef CONFIG_VHOST_USER_BLK_SERVER
114c8cbc952SPhilippe Mathieu-Daudé " --export [type=]vhost-user-blk,id=<id>,node-name=<node-name>,\n"
115c8cbc952SPhilippe Mathieu-Daudé " addr.type=unix,addr.path=<socket-path>[,writable=on|off]\n"
116c8cbc952SPhilippe Mathieu-Daudé " [,logical-block-size=<block-size>][,num-queues=<num-queues>]\n"
117c8cbc952SPhilippe Mathieu-Daudé " export the specified block node as a\n"
118c8cbc952SPhilippe Mathieu-Daudé " vhost-user-blk device over UNIX domain socket\n"
119c8cbc952SPhilippe Mathieu-Daudé " --export [type=]vhost-user-blk,id=<id>,node-name=<node-name>,\n"
120e66e665fSKevin Wolf " addr.type=fd,addr.str=<fd>[,writable=on|off]\n"
121c8cbc952SPhilippe Mathieu-Daudé " [,logical-block-size=<block-size>][,num-queues=<num-queues>]\n"
122c8cbc952SPhilippe Mathieu-Daudé " export the specified block node as a\n"
123c8cbc952SPhilippe Mathieu-Daudé " vhost-user-blk device over file descriptor\n"
124c8cbc952SPhilippe Mathieu-Daudé "\n"
125c8cbc952SPhilippe Mathieu-Daudé #endif /* CONFIG_VHOST_USER_BLK_SERVER */
126ca941c40SStefan Hajnoczi #ifdef CONFIG_VDUSE_BLK_EXPORT
127ca941c40SStefan Hajnoczi " --export [type=]vduse-blk,id=<id>,node-name=<node-name>\n"
128779d82e1SXie Yongji " ,name=<vduse-name>[,writable=on|off]\n"
129779d82e1SXie Yongji " [,num-queues=<num-queues>][,queue-size=<queue-size>]\n"
130ca941c40SStefan Hajnoczi " [,logical-block-size=<logical-block-size>]\n"
1310862a087SXie Yongji " [,serial=<serial-number>]\n"
132779d82e1SXie Yongji " export the specified block node as a\n"
133779d82e1SXie Yongji " vduse-blk device\n"
134ca941c40SStefan Hajnoczi "\n"
135ca941c40SStefan Hajnoczi #endif /* CONFIG_VDUSE_BLK_EXPORT */
1367c58bb76SPaolo Bonzini " --monitor [chardev=]name[,mode=control][,pretty[=on|off]]\n"
1377c58bb76SPaolo Bonzini " configure a QMP monitor\n"
1387c58bb76SPaolo Bonzini "\n"
1397c58bb76SPaolo Bonzini " --nbd-server addr.type=inet,addr.host=<host>,addr.port=<port>\n"
1401c8222b0SKevin Wolf " [,tls-creds=<id>][,tls-authz=<id>][,max-connections=<n>]\n"
1417c58bb76SPaolo Bonzini " --nbd-server addr.type=unix,addr.path=<path>\n"
1421c8222b0SKevin Wolf " [,tls-creds=<id>][,tls-authz=<id>][,max-connections=<n>]\n"
1437c58bb76SPaolo Bonzini " start an NBD server for exporting block nodes\n"
1447c58bb76SPaolo Bonzini "\n"
1457c58bb76SPaolo Bonzini " --object help list object types that can be added\n"
1467c58bb76SPaolo Bonzini " --object <type>,help list properties for the given object type\n"
1477c58bb76SPaolo Bonzini " --object <type>[,<property>=<value>...]\n"
1487c58bb76SPaolo Bonzini " create a new object of type <type>, setting\n"
1497c58bb76SPaolo Bonzini " properties in the order they are specified. Note\n"
1507c58bb76SPaolo Bonzini " that the 'id' property must be set.\n"
1517c58bb76SPaolo Bonzini " See the qemu(1) man page for documentation of the\n"
1527c58bb76SPaolo Bonzini " objects that can be added.\n"
1537c58bb76SPaolo Bonzini "\n"
15403d2b412SStefan Hajnoczi " --pidfile <path> write process ID to a file after startup\n"
15503d2b412SStefan Hajnoczi "\n"
1567c58bb76SPaolo Bonzini QEMU_HELP_BOTTOM "\n",
157336d354bSMarc-André Lureau g_get_prgname());
1587c58bb76SPaolo Bonzini }
1597c58bb76SPaolo Bonzini
1607c58bb76SPaolo Bonzini enum {
1617c58bb76SPaolo Bonzini OPTION_BLOCKDEV = 256,
1627c58bb76SPaolo Bonzini OPTION_CHARDEV,
1632525edd8SHanna Reitz OPTION_DAEMONIZE,
1647c58bb76SPaolo Bonzini OPTION_EXPORT,
1657c58bb76SPaolo Bonzini OPTION_MONITOR,
1667c58bb76SPaolo Bonzini OPTION_NBD_SERVER,
1677c58bb76SPaolo Bonzini OPTION_OBJECT,
16803d2b412SStefan Hajnoczi OPTION_PIDFILE,
1697c58bb76SPaolo Bonzini };
1707c58bb76SPaolo Bonzini
1717c58bb76SPaolo Bonzini extern QemuOptsList qemu_chardev_opts;
1727c58bb76SPaolo Bonzini
init_qmp_commands(void)1737c58bb76SPaolo Bonzini static void init_qmp_commands(void)
1747c58bb76SPaolo Bonzini {
1757c58bb76SPaolo Bonzini qmp_init_marshal(&qmp_commands);
1767c58bb76SPaolo Bonzini
1777c58bb76SPaolo Bonzini QTAILQ_INIT(&qmp_cap_negotiation_commands);
1787c58bb76SPaolo Bonzini qmp_register_command(&qmp_cap_negotiation_commands, "qmp_capabilities",
1796604e475SMarkus Armbruster qmp_marshal_qmp_capabilities,
1806604e475SMarkus Armbruster QCO_ALLOW_PRECONFIG, 0);
1817c58bb76SPaolo Bonzini }
1827c58bb76SPaolo Bonzini
getopt_set_loc(int argc,char ** argv,const char * optstring,const struct option * longopts)183501a4b36SPaolo Bonzini static int getopt_set_loc(int argc, char **argv, const char *optstring,
184501a4b36SPaolo Bonzini const struct option *longopts)
185501a4b36SPaolo Bonzini {
186501a4b36SPaolo Bonzini int c, save_index;
187501a4b36SPaolo Bonzini
188501a4b36SPaolo Bonzini optarg = NULL;
189501a4b36SPaolo Bonzini save_index = optind;
190501a4b36SPaolo Bonzini c = getopt_long(argc, argv, optstring, longopts, NULL);
191501a4b36SPaolo Bonzini if (optarg) {
192501a4b36SPaolo Bonzini loc_set_cmdline(argv, save_index, MAX(1, optind - save_index));
193501a4b36SPaolo Bonzini }
194501a4b36SPaolo Bonzini return c;
195501a4b36SPaolo Bonzini }
196501a4b36SPaolo Bonzini
19779d51d73SHanna Reitz /**
19879d51d73SHanna Reitz * Process QSD command-line arguments.
19979d51d73SHanna Reitz *
20079d51d73SHanna Reitz * This is done in two passes:
20179d51d73SHanna Reitz *
20279d51d73SHanna Reitz * First (@pre_init_pass is true), we do a pass where all global
20379d51d73SHanna Reitz * arguments pertaining to the QSD process (like --help or --daemonize)
20479d51d73SHanna Reitz * are processed. This pass is done before most of the QEMU-specific
20579d51d73SHanna Reitz * initialization steps (e.g. initializing the block layer or QMP), and
20679d51d73SHanna Reitz * so must only process arguments that are not really QEMU-specific.
20779d51d73SHanna Reitz *
20879d51d73SHanna Reitz * Second (@pre_init_pass is false), we (sequentially) process all
20979d51d73SHanna Reitz * QEMU/QSD-specific arguments. Many of these arguments are effectively
21079d51d73SHanna Reitz * translated to QMP commands (like --blockdev for blockdev-add, or
21179d51d73SHanna Reitz * --export for block-export-add).
21279d51d73SHanna Reitz */
process_options(int argc,char * argv[],bool pre_init_pass)21379d51d73SHanna Reitz static void process_options(int argc, char *argv[], bool pre_init_pass)
2147c58bb76SPaolo Bonzini {
2157c58bb76SPaolo Bonzini int c;
2167c58bb76SPaolo Bonzini
2177c58bb76SPaolo Bonzini static const struct option long_options[] = {
2187c58bb76SPaolo Bonzini {"blockdev", required_argument, NULL, OPTION_BLOCKDEV},
2197c58bb76SPaolo Bonzini {"chardev", required_argument, NULL, OPTION_CHARDEV},
2202525edd8SHanna Reitz {"daemonize", no_argument, NULL, OPTION_DAEMONIZE},
2217c58bb76SPaolo Bonzini {"export", required_argument, NULL, OPTION_EXPORT},
2227c58bb76SPaolo Bonzini {"help", no_argument, NULL, 'h'},
2237c58bb76SPaolo Bonzini {"monitor", required_argument, NULL, OPTION_MONITOR},
2247c58bb76SPaolo Bonzini {"nbd-server", required_argument, NULL, OPTION_NBD_SERVER},
2257c58bb76SPaolo Bonzini {"object", required_argument, NULL, OPTION_OBJECT},
22603d2b412SStefan Hajnoczi {"pidfile", required_argument, NULL, OPTION_PIDFILE},
2277c58bb76SPaolo Bonzini {"trace", required_argument, NULL, 'T'},
2287c58bb76SPaolo Bonzini {"version", no_argument, NULL, 'V'},
2297c58bb76SPaolo Bonzini {0, 0, 0, 0}
2307c58bb76SPaolo Bonzini };
2317c58bb76SPaolo Bonzini
2327c58bb76SPaolo Bonzini /*
23379d51d73SHanna Reitz * In contrast to the system emulator, QEMU-specific options are processed
23479d51d73SHanna Reitz * in the order they are given on the command lines. This means that things
23579d51d73SHanna Reitz * must be defined first before they can be referenced in another option.
2367c58bb76SPaolo Bonzini */
23779d51d73SHanna Reitz optind = 1;
238501a4b36SPaolo Bonzini while ((c = getopt_set_loc(argc, argv, "-hT:V", long_options)) != -1) {
23979d51d73SHanna Reitz bool handle_option_pre_init;
24079d51d73SHanna Reitz
24179d51d73SHanna Reitz /* Should this argument be processed in the pre-init pass? */
24279d51d73SHanna Reitz handle_option_pre_init =
24379d51d73SHanna Reitz c == '?' ||
24479d51d73SHanna Reitz c == 'h' ||
24579d51d73SHanna Reitz c == 'V' ||
2462525edd8SHanna Reitz c == OPTION_DAEMONIZE ||
24779d51d73SHanna Reitz c == OPTION_PIDFILE;
24879d51d73SHanna Reitz
24979d51d73SHanna Reitz /* Process every option only in its respective pass */
25079d51d73SHanna Reitz if (pre_init_pass != handle_option_pre_init) {
25179d51d73SHanna Reitz continue;
25279d51d73SHanna Reitz }
25379d51d73SHanna Reitz
2547c58bb76SPaolo Bonzini switch (c) {
2557c58bb76SPaolo Bonzini case '?':
2567c58bb76SPaolo Bonzini exit(EXIT_FAILURE);
2577c58bb76SPaolo Bonzini case 'h':
2587c58bb76SPaolo Bonzini help();
2597c58bb76SPaolo Bonzini exit(EXIT_SUCCESS);
2607c58bb76SPaolo Bonzini case 'T':
26192eecfffSPaolo Bonzini trace_opt_parse(optarg);
26292eecfffSPaolo Bonzini trace_init_file();
2637c58bb76SPaolo Bonzini break;
2647c58bb76SPaolo Bonzini case 'V':
2657c58bb76SPaolo Bonzini printf("qemu-storage-daemon version "
2667c58bb76SPaolo Bonzini QEMU_FULL_VERSION "\n" QEMU_COPYRIGHT "\n");
2677c58bb76SPaolo Bonzini exit(EXIT_SUCCESS);
2687c58bb76SPaolo Bonzini case OPTION_BLOCKDEV:
2697c58bb76SPaolo Bonzini {
2707c58bb76SPaolo Bonzini Visitor *v;
2717c58bb76SPaolo Bonzini BlockdevOptions *options;
2727c58bb76SPaolo Bonzini
2737c58bb76SPaolo Bonzini v = qobject_input_visitor_new_str(optarg, "driver",
2747c58bb76SPaolo Bonzini &error_fatal);
2757c58bb76SPaolo Bonzini
2767c58bb76SPaolo Bonzini visit_type_BlockdevOptions(v, NULL, &options, &error_fatal);
2777c58bb76SPaolo Bonzini visit_free(v);
2787c58bb76SPaolo Bonzini
2797c58bb76SPaolo Bonzini qmp_blockdev_add(options, &error_fatal);
2807c58bb76SPaolo Bonzini qapi_free_BlockdevOptions(options);
2817c58bb76SPaolo Bonzini break;
2827c58bb76SPaolo Bonzini }
2837c58bb76SPaolo Bonzini case OPTION_CHARDEV:
2847c58bb76SPaolo Bonzini {
2857c58bb76SPaolo Bonzini /* TODO This interface is not stable until we QAPIfy it */
2867c58bb76SPaolo Bonzini QemuOpts *opts = qemu_opts_parse_noisily(&qemu_chardev_opts,
2877c58bb76SPaolo Bonzini optarg, true);
2887c58bb76SPaolo Bonzini if (opts == NULL) {
2897c58bb76SPaolo Bonzini exit(EXIT_FAILURE);
2907c58bb76SPaolo Bonzini }
2917c58bb76SPaolo Bonzini
2927c58bb76SPaolo Bonzini if (!qemu_chr_new_from_opts(opts, NULL, &error_fatal)) {
2937c58bb76SPaolo Bonzini /* No error, but NULL returned means help was printed */
2947c58bb76SPaolo Bonzini exit(EXIT_SUCCESS);
2957c58bb76SPaolo Bonzini }
2967c58bb76SPaolo Bonzini qemu_opts_del(opts);
2977c58bb76SPaolo Bonzini break;
2987c58bb76SPaolo Bonzini }
2992525edd8SHanna Reitz case OPTION_DAEMONIZE:
3002525edd8SHanna Reitz if (os_set_daemonize(true) < 0) {
3011a8fd0e3SHanna Reitz /*
302*9d2b5f2cSMarkus Armbruster * --daemonize is parsed before monitor_init_globals(), so
3031a8fd0e3SHanna Reitz * error_report() does not work yet
3041a8fd0e3SHanna Reitz */
3051a8fd0e3SHanna Reitz fprintf(stderr, "--daemonize not supported in this build\n");
3062525edd8SHanna Reitz exit(EXIT_FAILURE);
3072525edd8SHanna Reitz }
3082525edd8SHanna Reitz break;
3097c58bb76SPaolo Bonzini case OPTION_EXPORT:
3107c58bb76SPaolo Bonzini {
3117c58bb76SPaolo Bonzini Visitor *v;
312143ea767SKevin Wolf BlockExportOptions *export;
3137c58bb76SPaolo Bonzini
3147c58bb76SPaolo Bonzini v = qobject_input_visitor_new_str(optarg, "type", &error_fatal);
315143ea767SKevin Wolf visit_type_BlockExportOptions(v, NULL, &export, &error_fatal);
3167c58bb76SPaolo Bonzini visit_free(v);
3177c58bb76SPaolo Bonzini
318060102adSKevin Wolf qmp_block_export_add(export, &error_fatal);
319143ea767SKevin Wolf qapi_free_BlockExportOptions(export);
3207c58bb76SPaolo Bonzini break;
3217c58bb76SPaolo Bonzini }
3227c58bb76SPaolo Bonzini case OPTION_MONITOR:
3237c58bb76SPaolo Bonzini {
3247c58bb76SPaolo Bonzini Visitor *v;
3257c58bb76SPaolo Bonzini MonitorOptions *monitor;
3267c58bb76SPaolo Bonzini
3277c58bb76SPaolo Bonzini v = qobject_input_visitor_new_str(optarg, "chardev",
3287c58bb76SPaolo Bonzini &error_fatal);
3297c58bb76SPaolo Bonzini visit_type_MonitorOptions(v, NULL, &monitor, &error_fatal);
3307c58bb76SPaolo Bonzini visit_free(v);
3317c58bb76SPaolo Bonzini
3327c58bb76SPaolo Bonzini /* TODO Catch duplicate monitor IDs */
3337c58bb76SPaolo Bonzini monitor_init(monitor, false, &error_fatal);
3347c58bb76SPaolo Bonzini qapi_free_MonitorOptions(monitor);
3357c58bb76SPaolo Bonzini break;
3367c58bb76SPaolo Bonzini }
3377c58bb76SPaolo Bonzini case OPTION_NBD_SERVER:
3387c58bb76SPaolo Bonzini {
3397c58bb76SPaolo Bonzini Visitor *v;
3407c58bb76SPaolo Bonzini NbdServerOptions *options;
3417c58bb76SPaolo Bonzini
3427c58bb76SPaolo Bonzini v = qobject_input_visitor_new_str(optarg, NULL, &error_fatal);
3437c58bb76SPaolo Bonzini visit_type_NbdServerOptions(v, NULL, &options, &error_fatal);
3447c58bb76SPaolo Bonzini visit_free(v);
3457c58bb76SPaolo Bonzini
3467c58bb76SPaolo Bonzini nbd_server_start_options(options, &error_fatal);
3477c58bb76SPaolo Bonzini qapi_free_NbdServerOptions(options);
3487c58bb76SPaolo Bonzini break;
3497c58bb76SPaolo Bonzini }
3507c58bb76SPaolo Bonzini case OPTION_OBJECT:
351f3750266SKevin Wolf user_creatable_process_cmdline(optarg);
3527c58bb76SPaolo Bonzini break;
35303d2b412SStefan Hajnoczi case OPTION_PIDFILE:
35403d2b412SStefan Hajnoczi pid_file = optarg;
35503d2b412SStefan Hajnoczi break;
356a5ef3505SPaolo Bonzini case 1:
357501a4b36SPaolo Bonzini error_report("Unexpected argument");
358a5ef3505SPaolo Bonzini exit(EXIT_FAILURE);
3597c58bb76SPaolo Bonzini default:
3607c58bb76SPaolo Bonzini g_assert_not_reached();
3617c58bb76SPaolo Bonzini }
3627c58bb76SPaolo Bonzini }
363501a4b36SPaolo Bonzini loc_set_none();
3647c58bb76SPaolo Bonzini }
3657c58bb76SPaolo Bonzini
pid_file_cleanup(void)36603d2b412SStefan Hajnoczi static void pid_file_cleanup(void)
36703d2b412SStefan Hajnoczi {
3689d8f8233SHanna Reitz unlink(pid_file_realpath);
36903d2b412SStefan Hajnoczi }
37003d2b412SStefan Hajnoczi
pid_file_init(void)37103d2b412SStefan Hajnoczi static void pid_file_init(void)
37203d2b412SStefan Hajnoczi {
37303d2b412SStefan Hajnoczi Error *err = NULL;
37403d2b412SStefan Hajnoczi
37503d2b412SStefan Hajnoczi if (!pid_file) {
37603d2b412SStefan Hajnoczi return;
37703d2b412SStefan Hajnoczi }
37803d2b412SStefan Hajnoczi
37903d2b412SStefan Hajnoczi if (!qemu_write_pidfile(pid_file, &err)) {
38003d2b412SStefan Hajnoczi error_reportf_err(err, "cannot create PID file: ");
38103d2b412SStefan Hajnoczi exit(EXIT_FAILURE);
38203d2b412SStefan Hajnoczi }
38303d2b412SStefan Hajnoczi
3849d8f8233SHanna Reitz pid_file_realpath = g_malloc(PATH_MAX);
3859d8f8233SHanna Reitz if (!realpath(pid_file, pid_file_realpath)) {
3869d8f8233SHanna Reitz error_report("cannot resolve PID file path: %s: %s",
3879d8f8233SHanna Reitz pid_file, strerror(errno));
3889d8f8233SHanna Reitz unlink(pid_file);
3899d8f8233SHanna Reitz exit(EXIT_FAILURE);
3909d8f8233SHanna Reitz }
3919d8f8233SHanna Reitz
39203d2b412SStefan Hajnoczi atexit(pid_file_cleanup);
39303d2b412SStefan Hajnoczi }
39403d2b412SStefan Hajnoczi
main(int argc,char * argv[])3957c58bb76SPaolo Bonzini int main(int argc, char *argv[])
3967c58bb76SPaolo Bonzini {
3977c58bb76SPaolo Bonzini #ifdef CONFIG_POSIX
3987c58bb76SPaolo Bonzini signal(SIGPIPE, SIG_IGN);
3997c58bb76SPaolo Bonzini #endif
4007c58bb76SPaolo Bonzini
4017c58bb76SPaolo Bonzini error_init(argv[0]);
4027c58bb76SPaolo Bonzini qemu_init_exec_dir(argv[0]);
4037c58bb76SPaolo Bonzini os_setup_signal_handling();
4047c58bb76SPaolo Bonzini
40579d51d73SHanna Reitz process_options(argc, argv, true);
40679d51d73SHanna Reitz
4072525edd8SHanna Reitz os_daemonize();
4082525edd8SHanna Reitz
4097c58bb76SPaolo Bonzini module_call_init(MODULE_INIT_QOM);
4107c58bb76SPaolo Bonzini module_call_init(MODULE_INIT_TRACE);
4117c58bb76SPaolo Bonzini qemu_add_opts(&qemu_trace_opts);
4127c58bb76SPaolo Bonzini qcrypto_init(&error_fatal);
4137c58bb76SPaolo Bonzini bdrv_init();
414*9d2b5f2cSMarkus Armbruster monitor_init_globals();
4157c58bb76SPaolo Bonzini init_qmp_commands();
4167c58bb76SPaolo Bonzini
4177c58bb76SPaolo Bonzini if (!trace_init_backends()) {
4187c58bb76SPaolo Bonzini return EXIT_FAILURE;
4197c58bb76SPaolo Bonzini }
420c5955f4fSRichard Henderson qemu_set_log(LOG_TRACE, &error_fatal);
4217c58bb76SPaolo Bonzini
4227c58bb76SPaolo Bonzini qemu_init_main_loop(&error_fatal);
42379d51d73SHanna Reitz process_options(argc, argv, false);
4247c58bb76SPaolo Bonzini
42503d2b412SStefan Hajnoczi /*
42603d2b412SStefan Hajnoczi * Write the pid file after creating chardevs, exports, and NBD servers but
42703d2b412SStefan Hajnoczi * before accepting connections. This ordering is documented. Do not change
42803d2b412SStefan Hajnoczi * it.
42903d2b412SStefan Hajnoczi */
43003d2b412SStefan Hajnoczi pid_file_init();
4312525edd8SHanna Reitz os_setup_post();
43203d2b412SStefan Hajnoczi
4337c58bb76SPaolo Bonzini while (!exit_requested) {
4347c58bb76SPaolo Bonzini main_loop_wait(false);
4357c58bb76SPaolo Bonzini }
4367c58bb76SPaolo Bonzini
4371895b977SSergio Lopez blk_exp_close_all();
438b55a3c88SMax Reitz bdrv_drain_all_begin();
439e2157770SKevin Wolf job_cancel_sync_all();
440b55a3c88SMax Reitz bdrv_close_all();
441b55a3c88SMax Reitz
4427c58bb76SPaolo Bonzini monitor_cleanup();
4437c58bb76SPaolo Bonzini qemu_chr_cleanup();
4447c58bb76SPaolo Bonzini user_creatable_cleanup();
4457c58bb76SPaolo Bonzini
4467c58bb76SPaolo Bonzini return EXIT_SUCCESS;
4477c58bb76SPaolo Bonzini }
448